Brush Research GBD40024 FLEX-HONE, 4 (101mm) Diameter, 240 Grit, Silicon Carbide Abrasive (Pack of 1)

If you know what this then you know what it’s supposed to do. This one do exactly that

Worked as expected

These things are awesome. makes short and nice work honing cylinders.

awesome---cleaned up a 7 inch bore cylinder 10 feet long and shows little wear---highly recommend

Used it to clean up cylinder bores 80cui evo harley

This tool is great for deglazing the cylinder walls when rebuilding the engine. YES, I would recommend this to all who do rebuilding of engines.

Well made and seemed to do a nice consistent job. I just started up the engine I used it on and everything seems to be fine.

They work great as usual

Works perfectly

Got the job done